Ethics is defined as the entirety of moral principles that form the basis of individuals’ behavior; it can also be defined as “moral theory” or “theoretical ethics”. In a narrower sense, it is the science of “correct” and “incorrect” behaviors. Ethics is the philosophy of investigating, through analytical thinking, the values at the basis of relations between humans and the characteristics of the moral terms of good/bad and right/wrong. This characteristic of analytical thinking distinguishes ethics from morals: ethics refers to a system of thought, while moral refers to the set of values that develop on their own with the rise and fall of different societies (
1). Ethics guides how people view the relevance of each decision made in the field of health, and is separated into two subcategories: theoretical (philosophical) and applied. Theoretical ethics is concerned with the subject, meaning, and purpose behind philosophical ethics and examines its areas of responsibility. Applied ethics helps in deciding on what is right and wrong. By laying out the liabilities that each individual physician or health practitioner has towards him or herself and his or her patients, applied ethics teaches that physician the behavior that is in line with his or her own values. It assists in the decisions they must make, as well as their fulfillment with the profession; furthermore, it helps them avoid causing patients harm (
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3). The Florence Nightingale Pledge, acknowledged as the first ethical code for the medical profession, included important guidance rules for nurses. Expressions such as “I will do all in my power to maintain and elevate the standard of my profession, and will hold in confidence all personal matters committed to my keeping and all family affairs coming to my knowledge in the practice of my calling. With loyalty will I endeavor to aid the physician in his work, and devote myself to the welfare of those committed to my care. I will abstain from whatever is deleterious and mischievous. I will not take or knowingly administer any harmful drug” helped to orient the purpose and function of the nursing profession when the pledge was first introduced, setting forth new professional values for nursing. Since then, nursing has become increasingly acknowledged as a profession with unique values and principles (
4). However, the way in which the nursing profession changed over the years made it necessary to review and even amend these ethical codes. Thus, the American Nurses' Association (ANA, 1950) and the International Council of Nursing (ICN, 1953) reviewed the existing codes and established new versions. These "Nursing Ethics Codes" were presented with a new perspective on nursing, which demonstrated that nursing is an independent profession (
5). With the scientific and technological developments in the field of health, ethical codes specific to nursing had to be developed to help resolve the ethical dilemmas encountered by nurses; since their development, these codes have become known as instruments describing the responsibilities and common values unique to the nursing profession. These values guide nurses in their activities and decision making, as well as how they disseminate health information to the general public. The ethical principles established by contemporary medical ethics fall into four categories, as follows: autonomy, beneficence, nonmaleficence, justice. Autonomy: This principle dictates that the individual is able to make decisions about his or her health according to his or her values, beliefs, and expectations without been exposed to any outside pressure. This principle is based on the principle of self-determination, and aims to protect human dignity. It asks nurses to respect each individual and their values, because everyone is entitled to make decisions on their own lives and expect health personnel to respect their decisions. The most significant reflection of the principle of autonomy in the field of health is informed consent. Individuals are only able to exercise these rights by having actual information about the situation at hand. Another principle forming the basis for informed consent is “truthfulness and honesty.” The concept of informed consent, which is based on two fundamental ethics principles, places the responsibility on health professionals for informing patients and ensuring that patients understand what is happening to them during treatment; in addition, it entitles patients the right to refuse treatment in line with the provided information. This principle also refers to respecting the privacy of the patient during treatment and in any instance that the nurse is involved with the patient (
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7). Beneficence: This principle is based on providing benefit to the patient. This principle provides guidance to nurses in prioritizing patient beneficence, doing good, and avoiding maleficence (
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8). This principle is based on doing well. Maleficence: This principle is based on preventing maleficence. This means doing nothing that could harm someone else (
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8). This principle consists of three hierarchically related elements: non-maleficence, preventing maleficence and eliminating maleficence. Justice: This principle refers to treating each individual fairly. It emphasizes the importance of being careful that resources at hand are shared, particularly when deciding on treatments (
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12). Children are unable to defend their rights and require the advocacy of an adult, meaning that medical staff must also seek to protect the rights of the child (
6). This important responsibility increases the possibility of pediatrics nurses encountering ethical and legal problems. Therefore, nurses must be able to overcome these problems and make correct decisions, which primarily requires them to know the basic concepts, laws, rules, and other information related to the issue, and to seek continual improvement of their own nursing skills (
8). It is contemplated that number of people with enough information about these codes is quite low despite being a very important ethical codes especially in health-related fields. It has been found very few studies in the literature about ethical codes. One of the areas that most experienced of ethical issues is neonatal intensive care unit. After a literature review, we found no study describing the information and applications related to ethical codes of pediatric nurses.